Question

Computer Science Problem C++

cla5a.cpp 1 // cla10a BY student name, CSCI 2170-section 2 //File: cla10a.cpp 3 //Author: Dr. Roland H. Untch 4 //Purpose: This program displays a student's classification 5 // (e.g., "freshman", "sophmore", etc.) based on an 6 // integer classification code that is read in. In 7 // it's current form, this program uses nested IF 8 // statements to encode a "multiway branch" or "case 9 // construct" to determine the student's classification. 10 // As part of an exercise, the IF statements should 11 // be completely replaced by a SWITCH statement; that 12 // is, afterwards no IF statements will exist in the 13 // modified code. The encoding scheme is: 14 // 2 3 4 5 15 // freshman sophomore junior senior graduate graduate 16 17 //include files... 18 #include <iostream> 19 20 using namespace std; 21 22 23 int main() 24 { 25 int classification; 1/classification of a student 27 28 // input student's information cout << "Enter the student's classification code number (1-6): "; cin >> classification; 30 cout << "Your classification is" ; // Check for a valid classification and proceed accordingly if (classification >= 1 && classification <= 6) - 34 35 37 38 1/display appropriate classification phrase if ( classification==1) cout << "freshman"; else if (classification==2) cout << "sophomore"; else if (classification==3) cout << "junior"; else if (classification==4) cout << "senior"; else

cla5a.cpp

  1 // cla10a BY student name, CSCI 2170-section
  2 //File:        cla10a.cpp
  3 //Author:      Dr. Roland H. Untch
  4 //Purpose:     This program displays a student's classification
  5 //             (e.g., "freshman", "sophmore", etc.) based on an
  6 //             integer classification code that is read in.  In
  7 //             it's current form, this program uses nested IF
  8 //             statements to encode a "multiway branch" or "case
  9 //             construct" to determine the student's classification.
 10 //             As part of an exercise, the IF statements should
 11 //             be completely replaced by a SWITCH statement; that
 12 //             is, afterwards no IF statements will exist in the
 13 //             modified code.  The encoding scheme is:
 14 //             1         2         3         4         5         6 
 15 //           freshman  sophomore junior    senior    graduate  graduate  
 16 
 17 //include files...
 18 #include <iostream>
 19 
 20 using namespace std;
 21 
 22 
 23 int main()
 24 {
 25     int classification;          //classification of a student
 26 
 27     // input student's information
 28     cout << "Enter the student's classification code number (1-6): ";
 29     cin >> classification;
 30 
 31     cout << "Your classification is " ;
 32     // Check for a valid classification and proceed accordingly
 33     if (classification >= 1 && classification <= 6)
 34     {
 35         //display appropriate classification phrase
 36         if (     classification==1)
 37             cout << "freshman";
 38         else if (classification==2)
 39             cout << "sophomore";
 40         else if (classification==3)
 41             cout << "junior";
 42         else if (classification==4)
 43             cout << "senior";
 44         else
 45             cout << "graduate";
 46         cout << "." << endl;
 47     }
 48     else
 49         cout << "unknown. Invalid classification code." <<endl;
 50 
 51     return 0;
 52 }

Answer 1

UPDATED C++ PROGRAM WITH SWITCH - CASE

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// cla10a BY student name, CSCI 2170-section
//File: cla10a.cpp
//Author: Dr. Roland H. Untch
//Purpose: This program displays a student's classification
// (e.g., "freshman", "sophmore", etc.) based on an
// integer classification code that is read in. In
// it's current form, this program uses nested IF
// statements to encode a "multiway branch" or "case
// construct" to determine the student's classification.
// As part of an exercise, the IF statements should
// be completely replaced by a SWITCH statement; that
// is, afterwards no IF statements will exist in the
// modified code. The encoding scheme is:
// 1 2 3 4 5 6
// freshman sophomore junior senior graduate graduate

//include files...

#include <iostream>

using namespace std;

int main()
{
int classification; //classification of student
  
// input student's information
cout << "Enter the student's classification code number (1-6): ";
cin >> classification;
  
cout << "Your classification is " ;
  
//swtch-case statementt startshere
switch(classification){
  
case 1: cout<<"freshman.";
break;
case 2: cout<<"sophomore.";
break;
case 3: cout<<"junior.";
break;
case 4: cout<<"senior.";
break;
//case 5 and 6 both will be taken care in case 6 block
case 5:
case 6: cout<<"graduate.";
break;
default: //for all other cases apart from 1-6
cout << "unknown. Invalid classification code.";
  
}
  
cout<<endl;
  
return 0;
}

===================================

OUTPUT

===================================

Run1

Enter the student's classification code number (1-6): 4
Your classification is senior.

Run2

Enter the student's classification code number (1-6): 5
Your classification is graduate.

Run3

Enter the student's classification code number (1-6): 9
Your classification is unknown. Invalid classification code.